

Telem3
telem3 kicad project
- Size
- 124 × 80 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 200
- Nets
- 206
- Pads
- 776
- Tracks, vias
- 1,487, 386
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 9 Sep 2023
- Updated
- 25 Feb 2024
Overview
Telem3 is an open-source printed circuit board by 5aji, from the 5aji/telem3 repository on GitHub. It is a 4-layer board of 124 × 80 mm with 200 parts on 206 nets, routed with 1,487 tracks and 386 vias.
It is built around the ESP32-C3-MINI-1, L80-R and W25Q128JVSIQ, with the BME280, AP7361C-33E and BQ24075RGT among its other parts. Its parts include 50 capacitors, 46 resistors, 8 transistors, 7 ICs and 6 diodes. It belongs with the ESP32 and RISC-V boards of this library.
Main components
8ESP32-C3-MINI-1
--40℃~+81℃ -89dBm 2.4GHz 350mA 3V~3.6V 82mA ESP32-C3 Chip On-board PCB Antenna UART - WiFi Modules ROHSRF CrazyWiFi ModulesL80-R
SMDHot start acceleration SMD GNSS Modules ROHSQuectelSatellite Positioning ModulesW25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASHBME280
LGA-8(2.5x2.5)-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 1.8uA 16bit I2C、SPI ±0.5℃ ±3%RH LGA-8(2.5x2.5) Temperature and Humidity Sensor ROHSBoschTemperature And Humidity SensorAP7361C-33E
SOT-223-40℃~+85℃@(Ta) 1 1A 3.3V 340mV@(1A) 6V 75dB@(1kHz) 80uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsBQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery ManagementBZV55B10
SOD-80-65℃~+200℃ 1 Independent 100nA@7.5V 10V 15Ω 500mW 70Ω 9.8V~10.2V SOD-80 Zener Diodes ROHSLGEZener DiodesDLW43SH510XK2L
SMD-4P,4.5x3.2mm-40℃~+125℃ 10MΩ 125V 1Ω 2 230mA 50V 51uH@1MHz SMD-4P,4.5x3.2mm Common Mode Filters ROHSMurataCommon Mode Filters
Parts
200| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C3, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C26, C28, C34, C36 +9 |
| 19 | 100k | Resistor_SMD:R_0402_1005Metric | R1, R11, R12, R13, R14, R15, R16, R17, R18, R20, R27, R33, R35, R37, R39, R40 +3 |
| 8 | 330 | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R5, R6, R7, R9, R10 |
| 8 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C8, C21, C22, C25, C32, C33, C35, C47 |
| 7 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q8 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R29, R31, R34, R36, R38 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C23, C24, C39, C41 |
| 4 | 22u | Capacitor_SMD:C_0805_2012Metric | C30, C31, C38, C40 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C6, C7, C27 |
| 2 | 0R | Resistor_SMD:R_0603_1608Metric | R43, R44 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C4, C5 |
| 2 | 20p | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R30, R32 |
| 2 | 60R | Resistor_SMD:R_0603_1608Metric | R41, R42 |
| 2 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2, U3 |
| 1 | 1.13k | Resistor_SMD:R_0603_1608Metric | R25 |
| 1 | 1.18k | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | 105k | Resistor_SMD:R_0402_1005Metric | R22 |
| 1 | 13.3k | Resistor_SMD:R_0402_1005Metric | R28 |
| 1 | 15u | Inductor_SMD:L_Changjiang_FNR6020S | L1 |
| 1 | 1PPS | TestPoint:TestPoint_Pad_D1.0mm | TP19 |
| 1 | 2.5A | Fuse:Fuseholder_Littelfuse_Nano2_154x | F1 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | 330 | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 4.7n | Capacitor_SMD:C_0402_1005Metric | C44 |
| 1 | 46.4k | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 49.9 | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | 511k | Resistor_SMD:R_0402_1005Metric | R21 |
| 1 | 5V | LED_SMD:LED_0603_1608Metric | D11 |
| 1 | 600 @ 600MHz | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | 75p | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | 8MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | AP7361C-33E | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U8 |
| 1 | BAT | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J5 |
| 1 | BAT_CUR | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | BAT_TS_BYP | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP2 |
| 1 | BME280 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U13 |
| 1 | BME_~{CS} | TestPoint:TestPoint_Pad_D1.0mm | TP26 |
| 1 | BQ24075RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U7 |
| 1 | BZV55B10 | Diode_SMD:D_MiniMELF | D10 |
| 1 | CANH | TestPoint:TestPoint_Pad_D1.0mm | TP15 |
| 1 | CANL | TestPoint:TestPoint_Pad_D1.0mm | TP16 |
| 1 | CAN_RX | TestPoint:TestPoint_Pad_D1.0mm | TP13 |
| 1 | CAN_SHDN | TestPoint:TestPoint_Pad_D1.0mm | TP12 |
| 1 | CAN_STB | TestPoint:TestPoint_Pad_D1.0mm | TP14 |
| 1 | CAN_TERMINATION | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J11 |
| 1 | CAN_TX | TestPoint:TestPoint_Pad_D1.0mm | TP11 |
| 1 | Conn_01x04_Socket | Connector_Phoenix_MC:PhoenixContact_MC_1,5_4-GF-3.5_1x04_P3.50mm_Horizontal_ThreadedFlange_MountHole | J10 |
| 1 | DLW43SH510XK2L | footprints:FIL_DLW43SH510XK2L | FL1 |
| 1 | ESP32-C3-MINI-1 | Espressif:ESP32-C3-MINI-1U | U4 |
| 1 | ESP32_BOOTSEL | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Right | JP1 |
| 1 | ESP32_JTAG | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J4 |
| 1 | ESP32_RST | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW3 |
| 1 | ESP_LED0 | LED_SMD:LED_0805_2012Metric | D7 |
| 1 | ESP_LED1 | LED_SMD:LED_0805_2012Metric | D8 |
| 1 | EXPANSION_1 | Connector_PinSocket_2.54mm:PinSocket_2x09_P2.54mm_Vertical | J3 |
| 1 | FAULT_LED | LED_SMD:LED_0805_2012Metric | D5 |
| 1 | G*** | kibuzzard-64EA17F0 | kibuzzard-64EA17F0 |
| 1 | G*** | kibuzzard-64EA1880 | kibuzzard-64EA1880 |
| 1 | G*** | kibuzzard-64E84E26 | kibuzzard-64E84E26 |
| 1 | G*** | kibuzzard-64ED289C | kibuzzard-64ED289C |
| 1 | G*** | kibuzzard-64E6B9C4 | kibuzzard-64E6B9C4 |
| 1 | G*** | kibuzzard-64ED2075 | kibuzzard-64ED2075 |
| 1 | G*** | kibuzzard-64E6B9D9 | kibuzzard-64E6B9D9 |
| 1 | G*** | kibuzzard-64E6B9B9 | kibuzzard-64E6B9B9 |
| 1 | G*** | kibuzzard-64E6B9AE | kibuzzard-64E6B9AE |
| 1 | G*** | kibuzzard-64E84E3F | kibuzzard-64E84E3F |
| 1 | GOOD_LED | LED_SMD:LED_0805_2012Metric | D3 |
| 1 | GPS.RX | TestPoint:TestPoint_Pad_D1.0mm | TP18 |
| 1 | GPS.TX | TestPoint:TestPoint_Pad_D1.0mm | TP17 |
| 1 | GPS_ANT | Connector_Coaxial:SMA_Molex_73251-2120_EdgeMount_Horizontal | J12 |
| 1 | GPS_RST | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW4 |
| 1 | IMU_INT_{1} | TestPoint:TestPoint_Pad_D1.0mm | TP21 |
| 1 | IMU_INT_{2} | TestPoint:TestPoint_Pad_D1.0mm | TP22 |
| 1 | IMU_~{CS} | TestPoint:TestPoint_Pad_D1.0mm | TP20 |
| 1 | IRLML9301 | Package_TO_SOT_SMD:SOT-23 | Q7 |
| 1 | L80-R | RF_GPS:Quectel_L80-R | U11 |
| 1 | LOGO | footprints:isnteverythingamazing | G*** |
| 1 | LOGO | footprints:bananya_silkscreen | G*** |
| 1 | LOGO | footprints:totoro_leaf | G*** |
The 160 most common of 200 parts.
Questions
How big is the Telem3 PCB?
It measures 124 × 80 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Telem3 use?
200 parts, built around the ESP32-C3-MINI-1, L80-R, W25Q128JVSIQ and BME280. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Telem3 KiCad files?
From the 5aji/telem3 repository on GitHub, at the commit this page was made from: the board is telem3.kicad_pcb and its schematic esp32.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Telem3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask 5aji before reusing the design.
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